Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is quite massive compared with that of Yb:YAG. This permits for large wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values properly underneath a hundred fs have already been achieved with passive method locking.
The comparison with glasses is acceptable For the reason that massive gain bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
We current a twin-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output electric power up to 24 W and pulse duration of 20 ns,or to be a regenerative amplifier with output electricity as much as 21 W and pulse duration under 200 fs following compression of chirped pulses. Both lasers have outstanding beam high-quality with beam parameter M2
Colour-coded reflectivity of a Bragg mirror like a purpose of wavelength and angle in the incident beam.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to the similar measurements of these chemical things around one hundred% of Yb-doping may very well be realized. This one of a kind attribute permits ytterbium to go ahead and take place of yttrium with practically no disruption into the crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C military expectations, an adhesion examination concerned making use of a tape that satisfies LT-ninety specs onto the lens movie layer. The tape was affixed totally after which taken out vertically. This procedure was executed three times, resulting in no blistering or peeling.
FIG. one. Optical format of the laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
A large brightnessQ-switched oscillator and regenerative amplifier depending on a dual-crystal Yb:KGW laser
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... Not just the placement of crystal during the cavity but additionally the amplification axis of crystal affects the laser operation significantly, since the absorption and emission cross sections read more on the crystal are quite distinct according to the orientation with the crystal.
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Li2WO4-WO3 flux was productively utilized cutting down The expansion temperature underneath 900 oC. In keeping with one crystal x-ray measurements, the crystal corresponds to the P2/n space team.
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Ask RP Photonics for any guidance regarding tungstate lasers, like femtosecond lasers and higher-power lasers.